Recommended Resolution, Bitrate and HDR

mealto

mealto

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So what is the recommendation for bitrate and HDR when running 2K? Testing out 2K, 30fps + HDR. Wonder if disabling HDR and going with 60 fps is better at capturing license plates? Anyone else using Auto HDR timer? If so, what does this function do exactly.
 
mealto said:
what is the recommendation for bitrate and HDR
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The recommended Bitrate & HDR settings are different for every user / application.
Film your own test footage, and compare with your own eyeballs.

mealto said:
Anyone else using Auto HDR timer?
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Just between me, and you I don’t trust the Auto HDR Timer.
I use HDR On/Off.

Here’s an example of 2K30fps vs. 2K60fps on an A119 Mini 2;
There’s one important difference between these two clips.
Let’s see if you can notice it, (it’s not the firmware).


Here’s a “secret” link to playlists of all the test footage from every dash cam I’ve ever tested since 2020;
 
mealto said:
So what is the recommendation for bitrate and HDR when running 2K? Testing out 2K, 30fps + HDR. Wonder if disabling HDR and going with 60 fps is better at capturing license plates? Anyone else using Auto HDR timer? If so, what does this function do exactly.
Click to expand...
With the A229 Pro i use the hdr on with the clock set to turn on hdr at dusk and off when the sun rises.

I leave hdr off during the day as it can create shadow images in certain light conditions.
 
Panzer Platform said:
Let’s see if you can notice it, (it’s not the firmware).


Here’s a “secret” link to playlists of all the test footage from every dash cam I’ve ever tested since 2020;
Click to expand...
Looks like the 30FPS has HDR enabled as the entire scene is more "muted". Was that it?

If that was correct, I still think HDR version looks very good. Only when you compare it side-by-side with the 60FPS can you really see the difference.
 
Incorrect.
When HDR is enabled it’s displayed in the text overlay next to the GPS coordinates.
Go fish. lol

 
Besides the change in
Panzer Platform said:
I understand you’re not a fan of Go Fish.
How about a game of I Spy?
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Besides the change in season, given the markings on the road to indicate that you are in the same spot (along with your GPS coordinates) the 2024 image looks like it came from a wider FOV? Why was there such a big change in Firmware versions?
 
mealto said:
Besides the change in

Besides the change in season, given the markings on the road to indicate that you are in the same spot (along with your GPS coordinates) the 2024 image looks like it came from a wider FOV? Why was there such a big change in Firmware versions?
Click to expand...
This information can be found here:

VIOFO A119 Mini 2 - Test and Review RCG

I tested this with a tape. you can try too. When you think of the left image as a square, there are more angles to the left. This can cause blurriness. Can you trust a screenshot from the live view? I've found the live view image is not 100% identical to recorded footage that's been downloaded...
dashcamtalk.com dashcamtalk.com
 
mealto said:
wider FOV
Click to expand...

The A119 Mini 2 with the narrow FOV was the 1st batch that was sold to the public from May 2023 to July 2023.
In July 2023 Viofo upgrade the lens due to a de-focusing issue when exposed to high temperatures for prolonged time.
The “upgraded” lens has a wider FOV.
99° FOV Original Lens May 2023 - July 2023
114° FOV Upgraded Lens July 2023 - Current

A119 Mini 2 Original Lens .webp
A119 Mini 2 Upgraded Lens .webp

Ever since then I measure the horizontal FOV of all dash cams I test;

VIOFO Horizontal FOV Database

The purpose of this thread is to document the measured FOV of all future Viofo Dash Cams I receive for test & review, (and previous models). Shoutout to these gentlemen for helping me revise my testing jig, and measurement procedure. @rcg530 @Vortex Radar @Nigel @DT MI @Karagandinez @gse @Dex_...
dashcamtalk.com dashcamtalk.com
 
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